目前最可信的误咽评价检查方法是（）。 A.录像吞咽造影法 B.内镜 C.超声波 D.

（9分）A、B、C、D为短周期元素，请根据下表信息回答问题。

元素	A	B	C	D
性质或结构信息	工业上通过分离液态空气获得其单质，单质能助燃	气态氢化物显碱性	＋3价阳离子的核外电子排布与氖原子相同	第三周期原子半径最小

（1）B在气态氢化物的电子式为：　　　　            。

（2）工业上电解法冶炼单质C的化学方程式为：      　　　　　　　　　    。

（3）D的单质与A的一种氢化物反应生成具有漂白性的物质；D的单质与A的另一种氢化物反应生成A的单质。有关反应的化学方程式为：

　　　　　　　　　　　　     ；　　　                        。

Applet的默认布局管理：器是( )。

A．BorderLayout

B．FlowLayout

C．GridLayout

D．PanelLayout

阅读理解。

     We all know that certain oils are healthier than others, but your oil health goes beyond just the type.

The health of your oil can be related to how you use it too.

     Each type of oil has what is called a "smoke point". The smoke point is the specific temperature at

which the oil starts to break down, or in more technical terms, its molecular structure begins to change.

These molecular changes result in changes in flavor, as well as changes in nutritional value-specifically,

the nutritional value of the oil starts to reduce, changing what once may have been considered an

especially healthy oil, like olive, into one that is unhealthy.

     The higher an oil's smoke point is, the higher the temperature of the oil can be.As a result, each type

of oil should be used for the cooking method that is most appropriate to its individual smoke point and